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Association between the triglyceride to high-density lipoprotein cholesterol ratio and mortality in Chinese maintenance haemodialysis patients: a retrospective cohort study

Por: Qi · L. · Zhang · A. · Zhang · Y. · Ren · Z. · Zhao · C. · Wang · Q. · Ren · K. · Bai · J. · Cao · N.
Objective

To investigate the relationship between the triglyceride to high-density lipoprotein cholesterol (TG/HDL-C) ratio and all-cause and cardiovascular (CV) mortality in Chinese haemodialysis (HD) patients.

Design

Retrospective cohort study.

Setting

Patients from June 2015 to September 2016 and followed through September 2021 were categorised into quartiles according to the follow-up averaged TG/HDL-C ratio. The association between TG/HDL-C and mortality was examined by univariate and multivariate time-varying Cox regression analyses. The C-index was used to assess the predictive accuracy of the Cox regression models.

Participants

A total of 534 maintenance HD patients were enrolled.

Primary and secondary outcome measures

The outcomes were all-cause death and CV mortality.

Results

During the median follow-up of 61 months, 207 patients died, with 94 (45.4%) classified as CV death. After adjusting for confounders, multivariate time-varying Cox regression analysis showed that the quartile 4 group (TG/HDL-C ≥2.64) was associated with decreased all-cause mortality (adjusted HR 0.51, 95% CI 0.33–0.77, p=0.001) and CV mortality (adjusted HR 0.31; 95% CI 0.16 to 0.62; p=0.001) in maintenance HD patients. Model 1 of all-cause mortality achieved a C-index of 0.72 (95% CI 0.68 to 0.75), and model 2 achieved a C-index of 0.77 (95% CI 0.73 to 0.82). The C-index for model 1 in CV mortality was 0.74 (95% CI 0.70 to 0.77), and the C-index for model 2 was 0.80 (95% CI 0.75 to 0.84).

Conclusions

High TG/HDL-C was associated with decreased all-cause and CV mortality in HD patients.

Global trends in chronic kidney disease-related mortality: a systematic review protocol

Por: Tungsanga · S. · Ghimire · A. · Hariramani · V. K. · Abdulrahman · A. · Khan · A. S. · Ye · F. · Kung · J. Y. · Klarenbach · S. · Thompson · S. · Collister · D. · Srisawat · N. · Okpechi · I. G. · Bello · A. K.
Introduction

In recent decades, all-cause mortality has increased among individuals with chronic kidney disease (CKD), influenced by factors such as aetiology, standards of care and access to kidney replacement therapies (dialysis and transplantation). The recent COVID-19 pandemic also affected mortality over the past few years. Here, we outline the protocol for a systematic review to investigate global temporal trends in all-cause mortality among patients with CKD at any stage from 1990 to current. We also aim to assess temporal trends in the mortality rate associated with the COVID-19 pandemic.

Methods and analysis

We will conduct a systematic review of studies reporting mortality for patients with CKD following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We will search electronic databases, national and multiregional kidney registries and grey literature to identify observational studies that reported on mortality associated with any cause for patients with CKD of all ages with any stage of the disease. We will collect data between April and August 2023 to include all studies published from 1990 to August 2023. There will be no language restriction, and clinical trials will be excluded. Primary outcome will be temporal trends in CKD-related mortality. Secondary outcomes include assessing mortality differences before and during the COVID-19 pandemic, exploring causes of death and examining trends across CKD stages, country classifications, income levels and demographics.

Ethics and dissemination

A systematic review will analyse existing data from previously published studies and have no direct involvement with patient data. Thus, ethical approval is not required. Our findings will be published in an open-access peer-reviewed journal and presented at scientific conferences.

PROSPERO registration number

CRD42023416084.

Nephrologists perspectives on communication and decision-making regarding technique survival in peritoneal dialysis: an international qualitative interview study

Por: Yudianto · B. · Jaure · A. · Shen · J. · Cho · Y. · Brown · E. · Dong · J. · Dunning · T. · Mehrotra · R. · Naicker · S. · Pecoits-Filho · R. · Perl · J. · Wang · A. Y.-M. · Wilkie · M. · Guha · C. · Scholes-Robertson · N. · Craig · J. · Johnson · D. · Manera · K.
Objectives

Peritoneal dialysis (PD) allows patients increased autonomy and flexibility; however, both infectious and non-infectious complications may lead to technique failure, which shortens treatment longevity. Maintaining patients on PD remains a major challenge for nephrologists. This study aims to describe nephrologists’ perspectives on technique survival in PD.

Design

Qualitative semistructured interview study. Transcripts were thematically analysed.

Setting and participants

30 nephrologists across 11 countries including Australia, the USA, the UK, Hong Kong, Canada, Singapore, Japan, New Zealand, Thailand, Colombia and Uruguay were interviewed from April 2017 to November 2019.

Results

We identified four themes: defining patient suitability (confidence in capacity for self-management, ensuring clinical stability and expected resilience), building endurance (facilitating access to practical support, improving mental well-being, optimising quality of care and training to reduce risk of complications), establishing rapport through effective communications (managing expectations to enhance trust, individualising care and harnessing a multidisciplinary approach) and confronting fear and acknowledging barriers to haemodialysis (preventing crash landing to haemodialysis, facing concerns of losing independence and positive framing of haemodialysis).

Conclusion

Nephrologists reported that technique survival in PD is influenced by patients’ medical circumstances, psychological motivation and positively influenced by the education and support provided by treating clinicians and families. Strategies to enhance patients’ knowledge on PD and communication with patients about technique survival in PD are needed to build trust, set patient expectations of treatment and improve the process of transition off PD.

Results from a cross-specialty consensus on optimal management of patients with chronic kidney disease (CKD): from screening to complications

Por: Arici · M. · Assaad-Khalil · S. H. · Bertoluci · M. C. · Choo · J. · Lee · Y.-J. · Madero · M. · Rosa Diez · G. J. · Sanchez Polo · V. · Chung · S. · Thanachayanont · T. · Pollock · C.
Background

Chronic kidney disease (CKD) affects around 10% of the global population and has been estimated to affect around 50% of individuals with type 2 diabetes and 50% of those with heart failure. The guideline-recommended approach is to manage with disease-modifying therapies, but real-world data suggest that prescribing rates do not reflect this in practice.

Objective

To develop a cross-specialty consensus on optimal management of the patient with CKD using a modified Delphi method.

Design

An international steering group of experts specialising in internal medicine, endocrinology/diabetology, nephrology and primary care medicine developed 42 statements on aspects of CKD management including identification and screening, risk factors, holistic management, guidelines, cross-specialty alignment and education. Consensus was determined by agreement using an online survey.

Participants

The survey was distributed to cardiologists, nephrologists, endocrinologists and primary care physicians across 11 countries.

Main outcomes and measures

The threshold for consensus agreement was established a priori by the steering group at 75%. Stopping criteria were defined as a target of 25 responses from each country (N=275), and a 4-week survey period.

Results

274 responses were received in December 2022, 25 responses from Argentina, Australia, Brazil, Guatemala, Mexico, Singapore, South Korea, Taiwan, Thailand, Turkey and 24 responses from Egypt. 53 responses were received from cardiologists, 52 from nephrologists, 55 from endocrinologists and 114 from primary care physicians. 37 statements attained very high agreement (≥90%) and 5 attained high agreement (≥75% and

Conclusions

There is a high degree of consensus regarding aspects of CKD management among healthcare professionals from 11 countries. Based on these strong levels of agreement, the steering group derived 12 key recommendations focused on diagnosis and management of CKD.

Assessing trends and variability in outpatient dual testing for chronic kidney disease with urine albumin and serum creatinine, 2009-2018: a retrospective cohort study in the Veterans Health Administration System

Por: Bhave · N. M. · Han · Y. · Steffick · D. · Bragg-Gresham · J. · Zivin · K. · Burrows · N. R. · Pavkov · M. E. · Tuot · D. · Powe · N. R. · Saran · R.
Background

Simultaneous urine testing for albumin (UAlb) and serum creatinine (SCr), that is, ‘dual testing,’ is an accepted quality measure in the management of diabetes. As chronic kidney disease (CKD) is defined by both UAlb and SCr testing, this approach could be more widely adopted in kidney care.

Objective

We assessed time trends and facility-level variation in the performance of outpatient dual testing in the integrated Veterans Health Administration (VHA) system.

Design, subjects and main measures

This retrospective cohort study included patients with any inpatient or outpatient visit to the VHA system during the period 2009–2018. Dual testing was defined as UAlb and SCr testing in the outpatient setting within a calendar year. We assessed time trends in dual testing by demographics, comorbidities, high-risk (eg, diabetes) specialty care and facilities. A generalised linear mixed-effects model was applied to explore individual and facility-level predictors of receiving dual testing.

Key results

We analysed data from approximately 6.9 million veterans per year. Dual testing increased, on average, from 17.4% to 21.2%, but varied substantially among VHA centres (0.3%–43.7% in 2018). Dual testing was strongly associated with diabetes (OR 10.4, 95% CI 10.3 to 10.5, p

Conclusions

Dual testing for CKD in high-risk specialties is increasing but remains low. This appears primarily due to low rates of testing for albuminuria. Promoting dual testing in high-risk patients will help to improve disease management and patient outcomes.

Protection against Incidences of Serious Cardiovascular Events Study with daily fish oil supplementation in dialysis patients (PISCES): protocol for a randomised controlled trial

Por: Lok · C. E. · Hemmelgarn · B. R. · Moist · L. M. · Polkinghorne · K. · Tomlinson · G. · Tonelli · M.
Introduction

Patients with kidney failure with replacement therapy (KFRT) suffer premature cardiovascular (CV) mortality and events with few proven pharmacological interventions. Omega-3 polyunsaturated essential fatty acids (n-3 PUFAs) are associated with a reduced risk of CV events and death in non-dialysis patients and in patients with established CV disease but n-3 PUFAs have not been evaluated in the high risk KFRT patient population.

Methods and analysis

This multicentre randomised, placebo controlled, parallel pragmatic clinical trial tests the hypothesis that oral supplementation with n-3 PUFA, when added to usual care, leads to a reduction in the rate of serious CV events in haemodialysis patients when compared with usual care plus matching placebo. A target sample size of 1100 KFRT patients will be recruited from 26 dialysis units in Canada and Australia and randomised to n-3 PUFA or matched placebo in a 1:1 ratio with an expected intervention period of at least 3.5 years. The primary outcome to be analysed and compared between intervention groups is the rate of all, not just the first, serious CV events which include sudden and non-sudden cardiac death, fatal and non-fatal myocardial infarction, stroke, and peripheral vascular disease events.

Ethics and dissemination

This study has been approved by all institutional ethics review boards involved in the study. Participants could only be enrolled following informed written consent. Results will be published in peer-reviewed journals and presented at scientific and clinical conferences.

Trial registration number

ISRCTN00691795

Multicentre external validation of the prognostic model kidney failure risk equation in patients with CKD stages 3 and 4 in Peru: a retrospective cohort study

Por: Bravo-Zuniga · J. · Chavez-Gomez · R. · Soto-Becerra · P.
Objectives

To externally validate the four-variable kidney failure risk equation (KFRE) in the Peruvian population for predicting kidney failure at 2 and 5 years.

Design

A retrospective cohort study.

Setting

17 primary care centres from the Health’s Social Security of Peru.

Participants

Patients older than 18 years, diagnosed with chronic kidney disease stage 3a–3b–4 and 3b–4, between January 2013 and December 2017. Patients were followed until they developed kidney failure, died, were lost, or ended the study (31 December 2019), whichever came first.

Primary and secondary outcome measures

Performance of the KFRE model was assessed based on discrimination and calibration measures considering the competing risk of death.

Results

We included 7519 patients in stages 3a–4 and 2798 patients in stages 3b–4. The estimated cumulative incidence of kidney failure, accounting for competing event of death, at 2 years and 5 years, was 1.52% and 3.37% in stages 3a–4 and 3.15% and 6.86% in stages 3b–4. KFRE discrimination at 2 and 5 years was high, with time-dependent area under the curve and C-index >0.8 for all populations. Regarding calibration in-the-large, the observed to expected ratio and the calibration intercept indicated that KFRE underestimates the overall risk at 2 years and overestimates it at 5 years in all populations.

Conclusions

The four-variable KFRE models have good discrimination but poor calibration in the Peruvian population. The model underestimates the risk of kidney failure in the short term and overestimates it in the long term. Further research should focus on updating or recalibrating the KFRE model to better predict kidney failure in the Peruvian context before recommending its use in clinical practice.

Prevalence of and factors associated with uncontrolled hypertension among patients with early chronic kidney disease attending tertiary hospitals in Dodoma, Tanzania: a cross-sectional study

Por: Katatwire · D. D. · Meremo · A.
Objective

To determine the prevalence of uncontrolled hypertension and its associated factors among patients with early chronic kidney disease (CKD) attending medical outpatient clinics at tertiary hospitals in Dodoma, Tanzania.

Design

Cross-sectional study.

Setting

Two tertiary hospitals in Dodoma, Tanzania.

Participants

The participants in this study were adult patients (≥18 years) with early CKD stages (1, 2 and 3) who were attending nephrology and medical outpatient clinics from November 2020 to March 2021. Patients who had been attending the clinic for at least 3 months, had baseline clinical data on their files, had estimated glomerular filtration rate (eGFR) ≥30 mL/min/1.73 m2 and who provided written informed consent were eligible. A total of 352 patients were enrolled, of whom 182 were men and 170 were women.

Outcome measure

The dependent variable was uncontrolled hypertension among patients with early CKD, based on blood pressure measurements.

Results

The prevalence of hypertension was 58.5% (206 of 352) and the prevalence of uncontrolled hypertension was 58.3% (120 of 206). Among patients with uncontrolled hypertension, 88.3% (106 of 120) had CKD stage 3, 80.2% (96 of 120) reported non-adherence to antihypertensives, 76.7% (92 of 120) were overweight or obese, 72.5% (87 of 120) reported current alcohol use and 26.7% (32 of 120) had diabetes mellitus. Factors that contributed to higher odds of uncontrolled hypertension were: age ≥50 years (OR=5.17, 95 % CI 2.37 to 13.33, p=0.001), alcohol use (OR=11.21, 95% CI 3.83 to 32.84, p=0.001), non-adherence to antihypertensives (OR=10.19, 95% CI 4.22 to 24.61, p=0.001), overweight/obesity (OR=6.28, 95% CI 2.54 to 15.53, p=0.001) and CKD stage 3 (OR=3.52, 95% CI 1.32 to 9.42, p=0.012).

Conclusion

Uncontrolled hypertension was highly prevalent among patients with early CKD in this setting and was associated with age, current alcohol use, non-adherence to antihypertensives, overweight/obesity and declining eGFR.

Sikh and Muslim perspectives on kidney transplantation: phase 1 of the DiGiT project - a qualitative descriptive study

Por: Brand · S. · Daga · S. · Mistry · K. · Morsy · M. · Bagul · A. · Hamer · R. · Malik · S.
Objectives

Kidney transplantation offers patients better quality of life and survival compared with dialysis. The risk of end stage renal disease is higher among ethnic minorities and they experience longer wait times on transplant lists. This inequality stems from a high need for kidney transplantation combined with a low rate of deceased donation among ethnic minority groups. This study aimed to explore the perspectives around living donor kidney transplantation of members of the Sikh and Muslim communities with an aim to develop a digital intervention to overcome any barriers.

Design

A qualitative descriptive study using in person focus groups.

Setting

University Teaching Hospital and Transplant Centre.

Participants

Convenience sampling of participants from the transplant population. Three focus groups were held with 20 participants, all were of South Asian ethnicity belonging to the Sikh and Muslim communities.

Methods

Interviews were digitally audio-recorded and transcribed verbatim; transcripts were analysed thematically.

Results

Four themes were identified: (a) religious issues; (b) lack of knowledge within the community; (c) time; (d) cultural identification with transplantation.

Conclusions

Not only is the information given and when it is delivered important, but also the person giving the information is crucial to enhance consideration of live donor kidney transplantation. Information should be in a first language where possible and overtly align to religious considerations. A more integrated approach to transplantation counselling should be adopted which includes healthcare professionals and credible members of the target cultural group.

Trial registration number

NCT04327167.

Sleep quality and associated factors among patients with chronic kidney disease in Nigeria: a cross-sectional study

Por: Adejumo · O. A. · Edeki · I. R. · Mamven · M. · Oguntola · O. S. · Okoye · O. C. · Akinbodewa · A. A. · Okaka · E. I. · Ahmed · S. D. · Egbi · O. G. · Falade · J. · Dada · S. A. · Ogiator · M. O. · Okoh · B.
Objective

Poor sleep quality adversely affects the overall well-being and outcomes of patients with chronic kidney disease (CKD). However, it has not been well studied in Africans with CKD. We determined the prevalence of poor sleep quality and associated factors among patients with CKD.

Design

This was a cross-sectional study that involved patients with CKD .

Settings

The study was carried out in the outpatient clinic of nine hospitals in Nigeria.

Methods

Sleep quality, depressive and anxiety symptoms and quality of life (QoL) were assessed among 307 patients with CKD using Pittsburgh Sleep Quality Index Questionnaire, Hospital Anxiety Depression Scale Questionnaire and 12-item Short Form Health Survey Quality of Life Questionnaire, respectively. The prevalence of poor sleep quality and associated factors were determined. A p

Results

The mean age of the study participants was 51.40±15.17 years. The male:female ratio was 1.5:1 One hundred and twenty-one (39.4%) of the patients were on maintenance haemodialysis (MHD). The prevalence of poor sleep quality, anxiety symptoms and depressive symptoms among the patients was 50.2%, 37.8% and 17.6%, respectively. The prevalence of poor sleep quality in the CKD stages 3, 4, 5 and 5D was 38.1%, 42.6%, 52.2% and 58.7%, respectively. The prevalence of poor sleep quality was significantly higher in MHD patients compared with predialysis CKD (59.5% vs 43.6%; p=0.008). Factors associated with poor sleep quality were CKD stage (p=0.035), anaemia (p=0.003), pruritus (p=0.045), anxiety symptoms (p≤0.001), depressive symptoms (p≤0.001) and reduced QoL (p≤0.001). On multivariate analysis, factors associated with poor sleep were anxiety (AOR 2.19; 95% CI 1.27 to 3.79; p=0.005), anaemia (AOR 5.49; 95% CI 1.43 to 21.00;p=0.013) and reduced physical component of QoL (AOR 4.11; 95% CI 1.61 to 10.47; p=0.003).

Conclusion

Poor sleep quality is common among patients with CKD especially in the advanced stage. The significant factors associated with poor sleep quality were QoL, anaemia and anxiety symptoms. These factors should be adequately managed to improve the overall outcomes of patients with CKD.

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